Very rarely, a substance can change from a solid to a gas without ever becoming a liquid. This is called 'subliming'. Dry ice, which is frozen carbon dioxide, sublimes to form carbon dioxide gas. This effect is used in movies to make smoking, bubbling beakers!

Accessibility Commitment

We are committed to making our presentations accessible to everyone. Our platform supports adjustable text size, colour schemes, keyboard navigation, and screen reader compatibility.

Text Appearance Settings

Click the ⚙️ settings icon to customize your viewing experience:

  • Font Size: Small, Medium, or Large (ideal for visual difficulties)
  • Font Family: Choose from accessible fonts including Atkinson Hyperlegible (designed for dyslexia), Inter, Roboto, and others
  • Letter Spacing: Normal, Wide, or Extra Wide to reduce visual crowding
  • Text Case: Normal, lowercase, First Letter Caps, or UPPERCASE

Colour Schemes

High-contrast options for visual sensitivity and dyslexia support:

  • Yellow on Black (dyslexia-friendly)
  • Black on White (standard high clarity)
  • White on Purple/Green/Blue backgrounds

Narration

Support auditory learners with multiple voice options (Male 1-3, Female 1-3) to help with engagement and comprehension.

Keyboard Shortcuts

→ or Space
Next slide
← or Backspace
Previous slide
Home / End
First / Last slide
F / S / N
Fullscreen / Settings / Narration
Esc
Close dialog or exit fullscreen

Additional Features

  • Alternative text for images and ARIA landmarks for screen readers
  • Full keyboard navigation through all content
  • Settings save automatically for your session

💡 Tip: Every learner is different. Explore the settings to find what works best for you, and don't hesitate to try different combinations.

If you encounter any accessibility barriers or have suggestions for improvement, please contact us:

Email: [email protected]